20721260160

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{63113}}^1$

素因数の和:63160

約数の個数: 256

約数和(自身を含む): 77251536000

約数和(自身を除く): 56530275840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 32, 36, 38, 40, 45, 48, 54, 57, 60, 64, 72, 76, 80, 90, 95, 96, 108, 114, 120, 128, 135, 144, 152, 160, 171, 180, 190, 192, 216, 228, 240, 270, 285, 288, 304, 320, 342, 360, 380, 384, 432, 456, 480, 513, 540, 570, 576, 608, 640, 684, 720, 760, 855, 864, 912, 960, 1026, 1080, 1140, 1152, 1216, 1368, 1440, 1520, 1710, 1728, 1824, 1920, 2052, 2160, 2280, 2432, 2565, 2736, 2880, 3040, 3420, 3456, 3648, 4104, 4320, 4560, 5130, 5472, 5760, 6080, 6840, 7296, 8208, 8640, 9120, 10260, 10944, 12160, 13680, 16416, 17280, 18240, 20520, 21888, 27360, 32832, 36480, 41040, 54720, 63113, 65664, 82080, 109440, 126226, 164160, 189339, 252452, 315565, 328320, 378678, 504904, 568017, 631130, 757356, 946695, 1009808, 1136034, 1199147, 1262260, 1514712, 1704051, 1893390, 2019616, 2272068, 2398294, 2524520, 2840085, 3029424, 3408102, 3597441, 3786780, 4039232, 4544136, 4796588, 5049040, 5680170, 5995735, 6058848, 6816204, 7194882, 7573560, 8078464, 8520255, 9088272, 9593176, 10098080, 10792323, 11360340, 11991470, 12117696, 13632408, 14389764, 15147120, 17040510, 17987205, 18176544, 19186352, 20196160, 21584646, 22720680, 23982940, 24235392, 27264816, 28779528, 30294240, 32376969, 34081020, 35974410, 36353088, 38372704, 40392320, 43169292, 45441360, 47965880, 53961615, 54529632, 57559056, 60588480, 64753938, 68162040, 71948820, 72706176, 76745408, 86338584, 90882720, 95931760, 107923230, 109059264, 115118112, 121176960, 129507876, 136324080, 143897640, 153490816, 161884845, 172677168, 181765440, 191863520, 215846460, 218118528, 230236224, 259015752, 272648160, 287795280, 323769690, 345354336, 363530880, 383727040, 431692920, 460472448, 518031504, 545296320, 575590560, 647539380, 690708672, 767454080, 863385840, 1036063008, 1090592640, 1151181120, 1295078760, 1381417344, 1726771680, 2072126016, 2302362240, 2590157520, 3453543360, 4144252032, 5180315040, 6907086720, 10360630080, 20721260160]

約数ペア:

[(1, 20721260160), (2, 10360630080), (3, 6907086720), (4, 5180315040), (5, 4144252032), (6, 3453543360), (8, 2590157520), (9, 2302362240), (10, 2072126016), (12, 1726771680), (15, 1381417344), (16, 1295078760), (18, 1151181120), (19, 1090592640), (20, 1036063008), (24, 863385840), (27, 767454080), (30, 690708672), (32, 647539380), (36, 575590560), (38, 545296320), (40, 518031504), (45, 460472448), (48, 431692920), (54, 383727040), (57, 363530880), (60, 345354336), (64, 323769690), (72, 287795280), (76, 272648160), (80, 259015752), (90, 230236224), (95, 218118528), (96, 215846460), (108, 191863520), (114, 181765440), (120, 172677168), (128, 161884845), (135, 153490816), (144, 143897640), (152, 136324080), (160, 129507876), (171, 121176960), (180, 115118112), (190, 109059264), (192, 107923230), (216, 95931760), (228, 90882720), (240, 86338584), (270, 76745408), (285, 72706176), (288, 71948820), (304, 68162040), (320, 64753938), (342, 60588480), (360, 57559056), (380, 54529632), (384, 53961615), (432, 47965880), (456, 45441360), (480, 43169292), (513, 40392320), (540, 38372704), (570, 36353088), (576, 35974410), (608, 34081020), (640, 32376969), (684, 30294240), (720, 28779528), (760, 27264816), (855, 24235392), (864, 23982940), (912, 22720680), (960, 21584646), (1026, 20196160), (1080, 19186352), (1140, 18176544), (1152, 17987205), (1216, 17040510), (1368, 15147120), (1440, 14389764), (1520, 13632408), (1710, 12117696), (1728, 11991470), (1824, 11360340), (1920, 10792323), (2052, 10098080), (2160, 9593176), (2280, 9088272), (2432, 8520255), (2565, 8078464), (2736, 7573560), (2880, 7194882), (3040, 6816204), (3420, 6058848), (3456, 5995735), (3648, 5680170), (4104, 5049040), (4320, 4796588), (4560, 4544136), (5130, 4039232), (5472, 3786780), (5760, 3597441), (6080, 3408102), (6840, 3029424), (7296, 2840085), (8208, 2524520), (8640, 2398294), (9120, 2272068), (10260, 2019616), (10944, 1893390), (12160, 1704051), (13680, 1514712), (16416, 1262260), (17280, 1199147), (18240, 1136034), (20520, 1009808), (21888, 946695), (27360, 757356), (32832, 631130), (36480, 568017), (41040, 504904), (54720, 378678), (63113, 328320), (65664, 315565), (82080, 252452), (109440, 189339), (126226, 164160)]